Improvement in harrows



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PETER J. JACOBY, OF STERLING, ILLINOIS.

IMPRvs-:MENT |=N HARRows.

Specification forming part of Letters Patent No. 177'., 12S., datedMay9, 1875; application led June 12, 1875.

To all whom it may concern:

Be it known that I, PETER J. JAcoBY, of Sterling, in the county ofWhitesides and State of Illinois, have invented certain Improvements inHarrows, of which the following is a specification:

My invention has reference to that class of harrows in which two or moresections are at- 'cached to and drawn by one common draw-bar, and moreparticularly relates to providing a sim ple and practical mode of soattaching such sections to such draw-bar as that the sections maymaintain their respective positions and distances relative to thedraw-bar and to cach other, and yet dispense with any connectionsbetween the sections.

Figure l is a plan view of a harrow embodying my invention, with dottedlines forward of the draw-bar, showing` the line of draft. v

G C are ordinary barrow-sections, except that, in order to secure aproper amount of work where the sections lap, and to cause the teeth toproperly divide the intervals, the sections are made from three and ahalf to fourV inches wider across the rear than across the front.AisanordinarydraW-bar. Eachsection is attached, atits left-hand frontcorner, to the draw-bar A, at e, by means of a clevis, link, and staple,short rod, or a short chain, by which the section is drawn. The sectionsare then each drawn slightly to the right, and again attached todraw-bar by alonger rod attached to the frontend of the next to thelastbeam, and to the draw-bar at e.

The principle involved in this mode of attachmentis, that the greaterresistance on the right of the line of draft, occasioned by the greaterpart of each section being on the right of such line of draft, causeseach section to tend or swing toward the left, and, in effect, precludesany disposition or tendency of the sections to 'swin g or veer towardthe right. Then, by means of the adjustment of the guide orregulating-rods d d, the sections are held from swinging to the left,and their relative position is secured without any intersectionattachment.

The advantage of-dispensing with all connection of one section withanother is obvious from the one consideration of ease of lifting onesection from the rear for the purpose of cleaning.

The operation of cleaning the barrow-lifting it to disengage weeds,roots, grass, straw, or stalks-varies, of course, with the character andcondition of the ground; butin all ground more or less liftingisnecessary. When the sections are connected, not only is it morelaborious to lift the sections, but one cannot be lift-ed but a certainheight, and even then the remaining section or sections are disturbedand drawn out of place. Again, were the sections attached only at oneplace to the draw-bar, in a hollow or depression, on turning around, onesection would crowd under or over the other, while in Working on a ridgethe sections would separate and leave a strip unharrowed between them.

In my invention each section can be raised to nearly or quite a rightangle with the ground without in the least involving the lifting ordisturbing of any other section, and, by

the equilibrium produced in the tendency of the sections to swing to theleft, and their rel tention by the guide-rods d d, the sections canneither separate from nor crowd upon each other.

It is to be remembered that there is no draft forward ou the guide-rodsd d, but that the latter merely steady, as it were, the sections. Thedraft is alone from the left-hand front corner ot' each section, andmidway between the points of draft the team is hitched to the links a aon the front of the draw-bar. These links are placed a short distanceapart on the draw-bar, and brought together on the whifiietree-clevis,so as to hold the draw-bar square across the line of draft. Theguide-rods may be attached to the front end of either of the threerighthand beams, being changed in length to correspond to the distancebetween such respective points and the draw-bar, and

the draft-point may be changed to the righthand front corner, and theguiderods be changed to the left. Y

Another great advantage secured in my invention is the readiness andcompleteness with which each' section adjusts itself to the unevennessofthe ground, there being nothing to prevent either side of a sectionfrom rising or lowering without affecting the others or the from thedirect line of draft by theA extended loose connections e', whereby thesections tend to swing in one way only, andere at the same time allowedto conform to the unevenness of the ground, combined and arranged as andfor the purpose set orth. r

i PETER J. JAGOBY. Witnesses:

L. A. LINCOLN, J. W. ALEXANDER

